参数资料
型号: YMU757B-QZ
元件分类: 音频合成
英文描述: TONE/MUSIC SYNTHESIZER, PQCC20
封装: LEAD FREE, QFN-20
文件页数: 6/43页
文件大小: 990K
代理商: YMU757B-QZ
YMU757B
-14-
Timbre data
$10 – 2Fh
Timbre data
It is possible to register the data for 8 timbres in the register and 4 among them can be reproduced simultane
ously.
One timbre consists of [parameter for the modulator] and [parameter for the carrier] as a set.
(For the details of the modulator and the carrier, please refer to "General description of FM sound generator").
Index 10h, 11h …… Timbre data for the 1st timbre modulator
Index 12h, 13h …… Timbre data for the 1st timbre carrier
Index 14h, 15h …… Timbre data for the 2nd modulator
Index 16h, 17h …… Timbre data for the 2nd timbre carrier
……………Omitted…………….
Index 2Ch, 2Dh …… Timbre data for the 8th timbre modulator
Index 2Eh, 2Fh …… Timbre data for the 8th timbre carrier
The following bit assignment is used for both modulator and carrier.
The setting must be completed before any sound is generated. It is prohibited to change the timbre parameter while any
sound is generated.
Timbre data
Default: 0000h
Index
B15
b14
b13
b12
B11
b10
B9
b8
b7
b6
b5
b4
b3
b2
b1
b0
EVEN
ML2
ML1
ML0
VIB
EGT
SUS
RR3
RR2
RR1
RR0
DR3
DR2
DR1
DR0
AR3
AR2
ODD
AR1
AR0
SL3
SL2
SL1
SL0
TL5
TL4
TL3
TL2
TL1
TL0
WAV
FL2
FL1
FL0
ML2 - ML0 : Multiple setting
"Multiple" refers to the multiplying factor for sound frequency. The output frequency is determined by the octave, pitch
and multiple settings on the carrier side. On the modulator side, it is possible to adjust the multiple setting and create
different timbres.
ML [2:0]
Multiplying factor
for frequency
0h
X
1/2
1h
X
1
2h
X
2
3h
X
3
4h
X
4
5h
X
5
6h
X
6
7h
X
7
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